C/Templates used by Alice

In this appendix, we list the various templates issued by Alice. The templates are laid out when the appropriate keywords or operators are recognized.

Comment

{Comment}

Program

program program-name(input,output);
{Comment that says what the routine does}
Declarations
begin
Statement
end.

Label Declaration

label Label;

Type Declaration

type
    Name = Type; {Comment}

Const Declaration

const
    Name = Constant; {Comment}

Var Declaration

var
    Name : Type; {Comment}

Procedure Declaration

procedure proc-name(Parameter);
    {Comment that says what the routine does}
    Declarations
begin
    Statement
end;

Function Declaration

function func-name(Parameter) : Type-Name;
    {Comment that says what the routine does}
    Declarations
begin
    Statement
end;

Enumerated Types

Name = (Name);

Subrange

lower-bound .. upper-bound

Packed

packed Structured-Type

Array

array [range] of Type

Set

set of Simple-Type

File

file of file-element-type

Pointer

^Type-Name

Record

record
Field-Declaration;
end;

Field-Declaration

field-name : Type

Variant Parts Of Records

case tag-name : tag-type of
Variant
end;

Value Parameter

parm-name : Type-Name

Var Parameter

var parm-name : Type-Name

Formal Function

function func-name(Parameter) : Type;

Formal Procedure

procedure proc-name(Parameter);

Label

Label-Number :

Goto

goto label;

Procedure Call

Procedure Name(Value);

Function Call

Function Name(Value)

Assignment

Variable := Value;

if Condition then begin
    Statement
    end;

If-Else

if Condition then begin
    Statement
    end
 else begin
    Statement
    end;

For

for variable := start to finish do begin
    Statement
    end;

Downto

for variable := start downto finish do begin
    Statement
    end;

While

while Condition do begin
    Statement
    end;

Repeat

repeat
    Statement
until Condition;

With

with record-variable do begin
    Statement
    end;

Case

case Value of
    Case-Instance
    end;

Begin

begin
    Statement
    end;

Case Instance

Constant : begin
    Statement
    end;

Else Case

else begin
    Statement
    end;

Var Array

Variable[Subscript]

Var Pointer

Variable^

Var Field

Variable.Field

The templates that follow are all used for expressions. The format depends on the first character (operator) that is typed in.

(

(Value)

[

[Value]

Not

not Value

Unary Plus

+Value

Value + Value

Value - Value

Value or Value

Value * Value

Value / Value

Div

Value div Value

Mod

Value mod Value

And

Value and Value

Value = Value

Value <> Value

Value < Value

Value > Value

Value >= Value

Value <= Value

Value in Value

Subrange

Value .. Value